ffi: don't pad void return size to sizeof (ffi_arg).

* ffi.c (pad_retval): If the size is zero, don't pad it.

1 files changed, 1 insertions, 1 deletions

diff --git a/ffi.c b/ffi.c
index c21a004c..d9db41f8 100644
--- a/ffi.c
+++ b/ffi.c
@@ -64,7 +64,7 @@
 
 #define alignof(type) offsetof(struct {char x; type y;}, y)
 
-#define pad_retval(size) (convert(size_t, size) > sizeof (ffi_arg) \
+#define pad_retval(size) (!(size) || convert(size_t, size) > sizeof (ffi_arg) \
                           ? (size) \
                           : sizeof (ffi_arg))